Acidur 4529

Nombres alternativos y comerciales
1.4529, X1NiCrMoCuN25-20-7, SEL,SEW 400,UNS N08926
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Description

1.4529 (X1NiCrMoCuN25-20-7) is a stainless superaustenitic steel which is optimally prepared for the high requirements in chloride-containing and aggressive media. Due to its high resistance to pitting corrosion and stress corrosion cracking and its good combination of strength and toughness this special steel is ideal for fastening elements.

Related Standards

Equivalent Materials

Los datos sobre este material han sido proporcionados por Deutsche Edelstahlwerke Specialty Steel (DEW).

A menos que se indique lo contrario, todas las medidas corresponden a condiciones de temperatura ambiente. A menos que se indique lo contrario, se utilizan las unidades del SI.
Las normas armonizadas son similares a uno o varios estándares del proveedor. Es posible que algunas normas armonizadas se ajusten al estándar original, mientras que otras pueden quedar fuera de su alcance.

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Propiedades

General

PropertyValue

Densidad

8.1 g/cm³

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Medidas

PropertyValueComment

Diámetro

250 mm

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max.

Mecánica

PropertyTemperatureValueComment

Charpy impact energy, V-notch

100 J

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Dureza Brinell

250 [-]

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Elongación

35 %

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A5 | Transverse

40 %

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A5

Límite elástico

20 °C

300 MPa

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RP02

20 °C

340 MPa

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RP1

100 °C

230 MPa

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RP02

100 °C

270 MPa

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RP1

150 °C

210 MPa

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RP02

150 °C

245 MPa

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RP1

200 °C

190 MPa

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RP02

200 °C

225 MPa

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RP1

250 °C

180 MPa

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RP02

250 °C

215 MPa

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RP1

300 °C

170 MPa

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RP02

300 °C

205 MPa

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RP1

350 °C

165 MPa

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RP02

350 °C

195 MPa

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RP1

400 °C

160 MPa

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RP02

400 °C

190 MPa

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RP1

Módulo elástico

20 °C

195 GPa

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100 °C

190 GPa

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200 °C

182 GPa

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300 °C

174 GPa

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400 °C

166 GPa

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500 °C

158 GPa

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Resistencia a la tracción

650 - 850 MPa

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Aplicaciones térmicas

PropertyTemperatureValueComment

Calor específico

450 J/(kg·K)

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Coeficiente de dilatación térmica

100 °C

1.58e-05 1/K

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for 20°C to the mentioned temperature

200 °C

1.61e-05 1/K

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for 20°C to the mentioned temperature

300 °C

1.65e-05 1/K

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for 20°C to the mentioned temperature

400 °C

1.69e-05 1/K

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for 20°C to the mentioned temperature

500 °C

1.73e-05 1/K

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for 20°C to the mentioned temperature

Conductividad térmica

12 W/(m·K)

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Temperatura máx. de funcionamiento

400 °C

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Eléctrico

PropertyValue

Resistividad eléctrica

1e-06 Ω·m

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Chemical properties

PropertyValue

Azufre

0.01 %

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Carbono

0.02 %

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Cobre

0.5 - 1.5 %

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Cromo

19 - 21 %

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Fósforo

0.03 %

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Hierro

Balance

Manganeso

1 %

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Molibdeno

6 - 7 %

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Nitrógeno

0.15 - 0.25 %

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Níquel

24 - 26 %

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Silicona

0.5 %

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Technological properties

Property
Application areas

Construction industry (especially tunnel and swimming pool construction), Chemical industry, Decorative purposes and kitchen equipment, Flue gas desulfurization plants, Ship building, Use in sea or brackish water, Medical and pharmaceutical industry

Cold Forming

It can be cold formed, as high forming energy is needed because of the work hardening effect.

Corrosion properties

Excellent - It is resistant against intergranular corrosion according to DIN EN ISO 365 part 1 and 2. Halogen rich media can cause pitting corrosion and stress corrosion cracking. In chloride medium and see water it can resist till 70°C as well as in sulfuric acid and phosphoric acid.

General machinability

Average - Because of the alloying elements it is hard to machine this alloy. The machining shoud be done using high-speed steels or hard metals.

Heat Treatment

Solution annealing: 1120-1180°C (water, air) fast cooling

Hot forming

It is formable at 950-1200°C

Polishing ability

Good

Welding

Good - It is weldable using known processes although it tends to hot crack formation. Welding without a filler is not recommended. As a welding filler duplex materials such as 1.4462 are recommended. Using welding fillers lead to the reduction of corrosion ressitance in the welding region. Nickel alloys are also another filler material that can be used but the interlayer temperature should not go over 150°C.